Loose-leaf ledger.



No. 70I,092. Patented May 27, |902.

F. sEnGwmK.

LOOSE LEAF LEUGEB.

(Appuetion med Feb. 27, 1902i.) s (No Model.) -3 Sheets-Sheet I,

No. 7UL092. l Patented.May 27, |902.l I

w F. SEDGWICK. A

v LUSE LEAF LEDGER.

(Application :Bled Feb. 27,' 1902.) (No Model.) 3 Sheets-Sheet 2,-

No. 7n|,n92. Patented may 27, |902.

F. sEnGwlcK.

LOOSE LEAF LEDGEB.

(Application lad Feb. 27, 1902.)

3 Sheets-Sheet 3.

(No Model.)

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`NiThb STATES PATENT OFFICE.

FREDERICK SEDGVICK, OF CIIICACO, ILLINOIS, ASSIGNOR TO ERIK L. KRAG, OF.' CHICAGO, ILLINOIS.

LOOSE-LEAF LEDGER.

SPECIFICATION formingpart of Letters Patent No. 701,092, dated May 27, 1902.

Application filed February 27, 1902. Serial No. 951983. (No model.)

To all whom it may concern,.-

Beit known that I, FREDERICK SEDGWICK, of Chicago, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Loose-Leaf Ledgers, of which the following is a full, clear, and exact description, reference being had tothe accompanyng drawings, forming a part of this specication, in which corresponding numerals of reference in the different figures indicate like parts.

The object of my invention is to provide a temporary binding mechanism for binding loose leaves, which device shall be so constructed that the leaves maybereadily inserted therein or removed therefrom.

To these ends my invention consists in the combination of elements hereinafter more particularly described, and definitely pointed out in the claims.

In the drawings, Figure 1 is a perspective view of my improved binder as it would appear from within with the lids open and without leaves, portions of said lids being broken away. Fig. 2 is a detail view of a portion of one of the leaves adapted to be used in connection therewith. Fig. 3 is an inside View of said binder as it would appear when partially expanded. Fig. 4 is a back view thereof, the protecting-shield at the rear being removed to show the interior mechanism. Fig. 5 is an end view. Fig. 6 is a sectional view taken upon the line 6 6, Fig. 3, viewed in the direction ol' the arrow there shown. Fig. 7 is a transverse sectional view taken upon the line 7 7, Fig. 6; and Fig. Sis a sectional view in detail, taken upon the line S 8, Fig. 4.

Referring to the drawings, 1 l represent metal binding-plates which are arranged parallel to each other and are intended to bind the leaves together in the manner hereinafterv described. Rigidly attached to each of said binding-plates and arranged at right angles thereto, preferably about midway between the edges thereof, are expansion-plates 2 2, which are provided near their inner or meeting edges with studs 3, rigidly attached thereto, which studs are projected loosely through slots 4 4 in a connecting-plate 5, adjustably secured by means of said studs and slots to the expansion-plates 2. I/Vashers G (better shown in Figs. 4, 6, and 8) are secured to the outer ends of the studs, thereby holding said connecting-plate in position while enabling said studs to be moved freely in said slots, which are placed at oblique angles to each other and to the planes, respectively, of the binding-plates.

A cross-bar 7 is placed against the back of the plates 2 2 at one end, to which is attached, by means of screws, as shown, abearing 8, into which is swiveled a screw having` flanges 8 S near the head upon opposite faces of said bearing, and a threaded body 9, which is tapped into a lug 10, rigidly attached to the end of the plate 5. The outer end of the screw is slotted, as shown at 11, to receive a detachable key 12, Fig. 6, for the purpose of rotating said screw. The cross-bar 7 is provided with a slot 13, Figs. 3, 4, and 6, through which is projected rivets having washers or guide-plates 14 14 upon their outer ends, said rivets being attached to the expansionplates 2 2. A similar cross-bar 15, having a slot 16, and similar guide blocks 17 17 are placed in corresponding positions, respectively, at the opposite ends of the plates 2 2 to that of the cross-bars 7 and washers 14 14. These cross-bars are in sliding contact with the plates 2 2 and serve, in conjunction with the plate 5, to hold the expansion-plates in alinement with each other, as well as to form in the case of the bar 7 a bearing for the screw-headto prevent endwise movement. The turning of the screw 9 to the right serves to draw theplate 5- toward the end upon which the screw is placed, and hence, through the action of the slots 4 and pins 3, serves to draw the plates 2 2 together, while the reverse actioucauses their separation, thereby drawing together or farther separating the binding-plates 1 1.. Suitable covers, consisting of the members 18 1S and 19 19, (better shown in Figs. 1, 5, and 7,) are secured, preferably, by means of screws or rivets 20, passing through the binding-plates and into the members 18. Outside of the expansion-plates are placed inclosing or covering plates 21 22, Figs. 6 and 7, which are attached to the outer edges of the compression-plates and bent inwardly at the ends to form ilanges 23 24, said plates and end flanges being arranged to slide IOO upon each other as the binder is expanded or contracted. Extensions of the flanges 24, forming anges 25, (better shown in Fig. 6,) are arranged to overlap the iianges 23. The end anges are attached to the binding-plates by means of internal flanges 26 27, respectively.

Binding-studs 28 are rigidly and alternately attached to opposite binding-plates, as clearly shown in Figs. 3 and 7, and are iitted to slide within tubes 29, attached in reverse order to said binding-plates. The leaves 30, Figs. 2 and 7, are provided with perforations 31 and slots 32 to enable them to be readilyinserted in position or removed therefrom.

Slots 33 34, Figs. 1 and 5, are formed in the end plates to enable the key 12 to be inserted in position to turn the screw 9.

The operation of myimproved device is as follows: Upon placing the key in position and turning it to the left the expansion-plates 2 2 are separated to the full limit. The leaves are then inserted and the action of the screw reversed until the leaves are firmly compressed, the device requiring no further manipulation or locking action than the mere turning of said screw.

The backing-plates 2l and 22 are not essential to the operation of the device as a binder, and aside from the slight bracing effect merely serve to inclose the operating mechanism.

Having thus described my invention, I claim- 1. Adevice of the class described, in which is combined parallel binding-plates, expansion-plates arranged at right angles thereto,

a connecting-plate yhaving obliquely-disposed slots therein extending from near opposite edges toward the middle, studs upon said opposite. expansion-plates, one set connecting with one and the other with the other of said obliquely-disposed slots, and means for moving said connecting-plate longitudinally in opposite directions.

2. The combination in a device of the class described, of parallel binding-plates, bindingstuds arranged at right angles thereto, eXpansion-plates attached to said binding-plates in planes parallel to the plane of said bindingstuds, a connecting-plate having obliquelydisposed studs therein extending from near opposite sides toward the middle, studs upon said opposite expansion-plates, one set connecting with one and the other with the other studs thereon arranged at right angles thereto, expansion-plates attached to said bindingplates, a connecting-plate having obliquelydisposed slots therein extending from near opposite edges toward the middle, said slots from opposite edges being arranged'obliquely to each other, studs upon said opposite eX- pansion-plates, one set connecting with one and the other with the other of said obliquelydisposed slots, a sliding cross-bar connecting said expansion-plates, means for preventing the same from moving longitudinally thereof, and a screw swiveled in said cross-bar and in operative connection with said connectingplate. Y

4. The combination in a binder of the class described, of parallel binding-plates, expansion-plates attached at right angles thereto and arranged in a common plane, a connecting-plate having slots therein arranged obliquely to each other, means for connecting said slots with said expansion-plates, slotted cross-bars loosely connected with said expansion-plates by means of suitable studs, and a screw arranged longitudinally ot' said expansion-plates, said screw being swiveled in one of said cross-bars, and in operative connection with said slotted connecting-plate.

5. The combination in a binder of the class described, of parallel binding-plates, eXpansion-plates attached at right angles thereto and arranged in a common plane, a connecting-plate having slots therein arranged obliquely to each other, means for connecting said slots with said expansion-plates, slotted cross-bars loosely connected with said expansion plates by means of suitable studs, a screw arranged longitudinally of said expansion-plates, said screw being swiveled in one of said cross-bars and in operative connection with said slotted connecting-plate, and expansion back plates or shields.

In testimony whereof I have signed this specilication, in the presence of two subscribing Witnesses, this 12th day of December, 1901.

FREDERICK SEDGWICK.

Witnesses:

D. II. FLETCHER, CARRIE E. JORDAN.

IOS) 

